Items of different densities can be separated by methods like the density column or using a liquid medium with a density in between the solids. High-density items sink, and low-density items float, enabling easy separation.
You can separate items of different densities by using a method called density column. This method involves stacking liquids of different densities on top of one another. For example, if you have oil and water, both liquids would not mix due to their different densities. Water has a higher density than oil, so oil will float on top of the water. You then could separate the two by carefully siphoning off the oil on top.
Similarly, if you have a mixture of solids with different densities, you can use a liquid medium that has a density between the two solids. The solid with the higher density will sink, whereas the solid with a lower density will float, allowing for easy separation.
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B. network solid
C. metal
D. nonmetallic solid
Answer:
The correct answer option is B. network solid.
Explanation:
A network solid has the highest melting point.
The reason being that all of the atoms in this type of solid are covalently bonded to one another so the covalent bonds must be broken throughout the substance.
These covalent bonds holding the solid together are stronger than the ionic bonds. So it means that more heat energy is needed to break these bonds and therefore a higher temperature is required for it.
Network solids have the highest melting point.
What type of solid has the highest melting point?
The correct answer is B. network solid. Network solids, also known as covalent network solids, have the highest melting points among the options listed. These solids are held together by a three-dimensional network of covalent bonds, which require a significant amount of energy to break and hence have high melting points.
For example, a diamond is a network solid consisting of carbon atoms bonded together in a strong network of covalent bonds. It has an extremely high melting point of around 3,500°C.
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The three primary sources of carbon dioxide (CO2) in the atmosphere are the respiration of organisms, the burning of fossil fuels, and deforestation or land use changes.
Carbon dioxide (CO2) is a type of gas that naturally exists in the atmosphere. It is primarily released from three key sources, which include:
The three primary sources of carbon dioxide (CO2) in the atmosphere are the respiration of organisms, the burning of fossil fuels, and deforestation or land use changes.
The three primary sources of carbon dioxide (CO2) in the atmosphere are the respiration of organisms, the burning of fossil fuels, and deforestation or land use changes.
Yet due to human activities like industrialization and deforestation, the amounts of CO2 in the atmosphere have been increasing at an unprecedented rate, leading to global climate change.
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Answer:
Solute : Chocolate
Solvent : Milk
Explanation:
Solute - Substance dissolved in the solvent.
Solvent - The substance in which the solute is dissolved.
Since the Chocolate is dissolved in milk, Chocolate is solute and milk is the solvent.
Imagine that there is a cup of milk and you add chocolate to make chocolate milk. Something you add to solvent is solute.
b. Newly created energy that increased the total energy
c. Mechanical energy from the heating element in the kettle
d. Already existing energy that was present in some other form
Answer:
Mechanical energy from the heating element in the kettle
Explanation:
This is because the Element creates Mechanical and heat energy
Which correctly describes molecule "a" in this diagram
Answer is: adenosine triphosphate.
ATP is made of three components: the triphosphate (P), the sugar ribose and a nitrogenous base (adenine).
ATP is short for adenosine triphosphate
Adenosine triphosphate converts to either the adenosine diphosphate (ADP) or adenosine monophosphate (AMP), in this process energy is released.
The correct answer is A- Adenosine Triphosphate
Hope this helped! :)